Exercise A, B, and C worksheets testing the correct use of prepositions of time in English grammar.

Exercise A: Fill in the blanks with the correct choice from the brackets.

1. He bought the bag ________ his holiday in Pokhara. (in/during)
- Answer: during
- Explanation: "During" is used to indicate an action happening within a specific period of time. Here, the bag was bought during the holiday.

2. She slept ________ the second half of the film. (over/throughout)
- Answer: throughout
- Explanation: "Throughout" means continuously or all through a period of time. Here, she slept continuously during the second half of the film.

3. She talked to me ________ a few minutes and left hurriedly. (for/in)
- Answer: for
- Explanation: "For" is used to indicate a duration of time. Here, she talked for a few minutes.

4. I can't believe that you painted the whole house ________ five days. (for/in)
- Answer: in
- Explanation: "In" is used to indicate the completion of an action within a specified period of time. Here, the painting was completed in five days.

5. This temple was built ________ the 15th century. (during/over)
- Answer: during
- Explanation: "During" is used to indicate something happening within a specific period of time. The temple was built during the 15th century.

6. I'll be busy revising for the exam ________ the next three days. (during/over)
- Answer: over
- Explanation: "Over" is used to indicate something happening across a period of time. Here, the revision will happen over the next three days.

7. Don't worry. I'll be back home ________ a few days. (for/in)
- Answer: in
- Explanation: "In" is used to indicate the completion of an action within a specified period of time. Here, the person will return home in a few days.

8. They rested ________ half an hour and then continued on their journey. (during/for)
- Answer: for
- Explanation: "For" is used to indicate a duration of time. Here, they rested for half an hour.

9. She injured her back ________ a practice match. (in/over)
- Answer: in
- Explanation: "In" is used to indicate something happening within a specific context or event. Here, the injury occurred in a practice match.

10. Because he was on a short leave, he could only stay home ________ two days. (during/for)
- Answer: for
- Explanation: "For" is used to indicate a duration of time. Here, he stayed home for two days.

11. The director spoke just once ________ the meeting. (during/throughout)
- Answer: during
- Explanation: "During" is used to indicate something happening within a specific period of time. Here, the director spoke once during the meeting.

12. Weather conditions have improved ________ the last few days. (over/throughout)
- Answer: over
- Explanation: "Over" is used to indicate something happening across a period of time. Here, the weather improved over the last few days.

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Exercise B: Fill in the blanks with by or until to complete the sentences.

1. Mom had told me to get back ________ 2 o'clock, so I left the party before it was over. The party continued ________ 3 o'clock.
- Answer: by, until
- Explanation: "By" indicates a deadline or a point in time before which something must happen. "Until" indicates the continuation of an action up to a certain point in time. Here, Mom wanted me to get back by 2 o'clock, and the party continued until 3 o'clock.

2. I can't begin the project ________ the 15th as I have other things to do. I have to hand in the project ________ the end of the month, so I have only 15 days to complete it.
- Answer: until, by
- Explanation: "Until" indicates that the project cannot start until the 15th. "By" indicates a deadline for handing in the project by the end of the month.

3. I wanted to wait for you at the restaurant ________ 9 pm, but ________ 8:30 everybody had left, so I decided to go home too.
- Answer: until, by
- Explanation: "Until" indicates the intention to wait until 9 pm. "By" indicates that by 8:30, everyone had already left.

4. You can borrow my bike ________ Sunday, but make sure you bring it back ________ Sunday evening as I need it myself on Monday.
- Answer: until, by
- Explanation: "Until" indicates that you can borrow the bike until Sunday. "By" indicates that you must return it by Sunday evening.

5. You can submit the form ________ Friday. In case you decide to contact us on Friday, please note that the office is open only ________ 1:30, so you have to be here ________ 1 o'clock.
- Answer: by, until, by
- Explanation: "By" indicates the deadline for submitting the form by Friday. "Until" indicates that the office is open only until 1:30. "By" indicates that you must arrive by 1 o'clock.

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Exercise C: Make a few sentences of your own, using each of the following prepositions.

- During: During the summer vacation, we traveled to several countries.
- By: By the end of the week, we had completed all our assignments.
- Throughout: Throughout the entire project, we faced numerous challenges.
- For: For the past three years, I have been studying abroad.
- Until: Until the rain stops, we will stay indoors.
- Over: Over the course of the semester, we covered many topics.
- In: In the morning, I usually exercise for an hour.

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Final Answers:

Exercise A:
1. during
2. throughout
3. for
4. in
5. during
6. over
7. in
8. for
9. in
10. for
11. during
12. over

Exercise B:
1. by, until
2. until, by
3. until, by
4. until, by
5. by, until, by

Exercise C:
- During the summer vacation, we traveled to several countries.
- By the end of the week, we had completed all our assignments.
- Throughout the entire project, we faced numerous challenges.
- For the past three years, I have been studying abroad.
- Until the rain stops, we will stay indoors.
- Over the course of the semester, we covered many topics.
- In the morning, I usually exercise for an hour.

Final Answer:
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